noun 1. a man’s tall, collapsible top hat, held open or in shape by springs and usually covered with a black, silky fabric. Also called gibus. Compare 1 (def 4), , .noun 1. a collapsible top hat operated by a spring Also called gibus

[op-uh-rand] /ˈɒp əˌrænd/ noun, Mathematics. 1. a quantity upon which a mathematical operation is performed. /ˈɒpəˌrænd/ noun 1. a quantity or function upon which a mathematical or logical operation is performed n. 1886, from Latin operandum, neuter gerundive of operari (see operation). programming An argument of an operator or of a machine language instruction. (1995-08-18)

noun 1. (def 1). operant conditioning n. A process of behavior modification in which a subject is encouraged to behave in a desired manner through positive or negative reinforcement, so that the subject comes to associate the pleasure or displeasure of the reinforcement with the behavior.

Disclaimer: Opera-hat definition / meaning should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. All content on this website is for informational purposes only.